极值统计 meaning in Chinese

extreme value statistics
statistics of extreme values
statistics of extremes

Using extremum statistical method to predict pit corrosion sizes of the pipeline in service and further to evaluate the residual strength of the pipeline has a great significance for controlling accidents of corrosive perforations , guiding pipeline rehabilitation and replacement as well as prolonging service life of pipeline
长输管道的腐蚀类型多为均匀腐蚀或点腐蚀，采用极值统计方法对在役管道的点蚀尺寸进行预测，进而评价管道的剩余强度，对于控制管道的腐蚀穿孔事故、指导管道的修复更换、延长管道的使用寿命具有重要意义。